Assign color automatically to group

[funnym0nk3y]

Is your suggestion for improvement related to a problem? Please describe.
When creating a group I don't care what color the group has as long as it is clearly distinguishable from the other group colors.

Describe the solution you'd like
I'd like to have an option to assign a group color automatically. If the colors could be selected from a pallette with the greatest distance (eg HSV color space) would be an advantage. The manual assignment of colors should still be possible.

[lc9275]

I agree with the suggestion above, but would like to add something to this:

Currently when a new group is created the color gray is assigned - before by default no colour was assigned.
There seems to be currently no way of removing the color (other than editing the bib file). For smaller groups it is nice not to have a colour. So in addition to the random distinguishable color option, it would also be nice to have the option to have no color by default.

[funnym0nk3y]

Additionally, to name usage on multiple machines easier, the colours should be saved in the bib file to avoid changing colours.

[JoleneSun111]

Hello, I'm a new contributor, and I will carefully read the contribution guidelines. Could you please assign this issue to me?

[ThiloteE]

@JoleneSun111 Since you already have commented on two other issues, I will not assign you to this one here, as I fear you might overburden yourself and not be able to finish what you started. I will gladly assign you, once you have finished the other ones.

[Ziyao-Jin]

Hi! I have read the contributing guidelines and I'd love to work on this issue. Could you please assign this issue to me?

[github-actions]

As a general advice for newcomers: check out Contributing for a start. Also, guidelines for setting up a local workspace is worth having a look at.

Feel free to ask here at GitHub, if you have any issue related questions. If you have questions about how to setup your workspace use JabRef's Gitter chat. Try to open a (draft) pull-request early on, so that people can see you are working on the issue and so that they can see the direction the pull request is heading towards. This way, you will likely receive valuable feedback.

[JoleneSun111]

Hi Ziyao, I am the student also work in this project, do you want to discuss about the structure and build project issue? Best， Jolene

…

________________________________ 发件人: Ziyao-Jin ***@***.***> 发送时间: 2023年10月14日 17:07 收件人: JabRef/jabref ***@***.***> 抄送: Rong Sun ***@***.***>; Mention ***@***.***> 主题: Re: [JabRef/jabref] Assign color automatically to group (#7613) Hi! I have read the contributing guidelines and I'd love to work on this issue. Could you please assign this issue to me? ― Reply to this email directly, view it on GitHub<#7613 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/A6BEBCM5VFLGEBI3XZIJOCDX7ITY3AVCNFSM42RALZAKU5DIOJSWCZC7NNSXTN2JONZXKZKDN5WW2ZLOOQ5TCNZWGI3DGNRYGAYQ>. You are receiving this because you were mentioned.Message ID: ***@***.***>

[koppor]

Implementing using the HSV color model and maximal distance is a good idea.

Advanced version:

• top level groups use https://www.learnui.design/tools/data-color-picker.html#palette
• sub groups use https://www.learnui.design/tools/data-color-picker.html#single (with the colors at the beginning/end being based on the color of the top level group)

Found at https://chartio.com/learn/charts/how-to-choose-colors-data-visualization/

[koppor]

Note: more discussions/decisions are in the PR, especially #10521 (comment)